| Country | Abstracts | Downloads | |
|---|
 | United States | 311 | 95 | 
 |
 | Australia | 24 | 21 |
|
 | India | 18 | 18 |
|
 | United Kingdom | 16 | 7 |
|
 | Canada | 11 | 6 |
|
 | China | 5 | 6 |
|
 | Russian Federation | 1 | 6 |
|
 | unknown | 11 | 3 |
|
 | South Africa | 3 | 3 |
|
 | Europe | 11 | 2 |
|
 | Saudi Arabia | 3 | 2 |
|
 | Japan | 2 | 2 |
|
 | Poland | 3 | 2 |
|
 | Iran, Islamic Republic of | 1 | 2 |
|
 | Italy | 5 | 2 |
|
 | Netherlands | 4 | 2 |
|
 | Taiwan, Province of China | 1 | 1 |
|
 | Spain | 4 | 1 |
|
 | Denmark | 2 | 1 |
|
 | New Zealand | 1 | 1 |
|
 | Bosnia and Herzegovina | 1 | 1 |
|
 | Thailand | 4 | 1 |
|
 | Croatia | 1 | 1 |
|
 | Slovakia | 1 | 1 |
|
 | Belgium | 1 | 1 |
|
 | Austria | 1 | 1 |
|
 | Portugal | 1 | 1 |
|
 | Argentina | 1 | 1 |
|
 | Lebanon | 1 | 1 |
|
 | France | 1 | 1 |
|
 | Colombia | 1 | 1 |
|
 | Sweden | 1 | 1 |
|
 | Norway | 1 | 1 |
|
 | Germany | 4 | 1 |
|
 | Kuwait | 0 | 1 |
|
 | Tanzania, United Republic of | 0 | 1 |
|
 | Indonesia | 4 | 0 |
|
 | Switzerland | 3 | 0 |
|
 | Greece | 2 | 0 |
|
 | Singapore | 2 | 0 |
|
 | Hong Kong | 1 | 0 |
|
 | Philippines | 1 | 0 |
|
 | Malaysia | 1 | 0 |
|
 | Vietnam | 1 | 0 |
|
 | United Arab Emirates | 1 | 0 |
|
 | Jordan | 1 | 0 |
|
 | Lithuania | 1 | 0 |
|
 | Korea, Republic of | 1 | 0 |
|
 | Ethiopia | 1 | 0 |
|
